Belemnites may refer to:
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Belemnitida
Belemnitida (or the belemnite) is an extinct order of squid-like cephalopods that existed from the Late Triassic to Late Cretaceous. Unlike squid, belemnites had an internal skeleton that made up the cone. The parts are, from the arms-most to ...
, an extinct order of cephalopods commonly known as "belemnites"
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''Belemnites'' (genus), a belemnite genus from the Early Jurassic
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